Whelp, spent the first 50 on a house all humans will drool over. Got the compulsory car. Got the compulsory jet. Got the compulsory yacht (not quite as large as Bezos' (ehmm, banana?) that could not leave its construction port). [1]
And with the other 600 million? Private air force? [2] Air craft carrier for your private air force? Or you end up like every wealthy human, dumping your money into real estate so that you can buy 1000 houses for every normal human, and completely "disrupt" the housing market.
[1] https://en.wikipedia.org/wiki/Koru_(yacht)#Koru_and_De_Hef
[2] https://www.thedrive.com/the-war-zone/32869/this-man-owns-th...